Navigation Links
Global cooling as significant as global warming
Date:6/16/2013

A "cold snap" 116 million years ago triggered a similar marine ecosystem crisis to those witnessed in the past as a result of global warming, according to research published today in Nature Geoscience.

The international study involving experts from the universities of Newcastle, UK, Cologne, Frankfurt and GEOMAR-Kiel, confirms the link between global cooling and a crash in the marine ecosystem during the mid-Cretaceous greenhouse period.

It also quantifies for the first time the amplitude and duration of the temperature change. Analysing the geochemistry and micropaleontology of a marine sediment core taken from the North Atlantic Ocean, the team show that a global temperature drop of up to 5oC resulted in a major shift in the global carbon cycle over a period of 2.5 million years.

Occurring during a time of high tectonic activity that drove the breaking up of the super-continent Pangaea, the research explains how the opening and widening of new ocean basins around Africa, South America and Europe created additional space where large amounts of atmospheric CO2 was fixed by photosynthetic organisms like marine algae. The dead organisms were then buried in the sediments on the sea bed, producing organic, carbon rich shale in these new basins, locking away the carbon that was previously in the atmosphere.

The result of this massive carbon fixing mechanism was a drop in the levels of atmospheric CO2, reducing the greenhouse effect and lowering global temperature.

This period of global cooling came to an end after about 2 million years following the onset of a period of intense local volcanic activity in the Indian Ocean. Producing huge volumes of volcanic gas, carbon that had been removed from the atmosphere when it was locked away in the shale was replaced with CO2 from the Earth's interior, re-instating a greenhouse effect which led to warmer climate and an end to the "cold snap".

The research team say this study highlights how g
'/>"/>

Contact: Thomas Wagner
thomas.wagner@ncl.ac.uk
44-019-122-27893
Newcastle University
Source:Eurekalert

Page: 1 2

Related biology news :

1. SPIE on global team proposing International Year of Light at United Nations
2. Chiltern Announces The Promotion Of Alecia Barbee To VP, Global Biometrics
3. Science academies issue G-Science statements to call world leaders attention to global challenges
4. Improving crop per drop could boost global food security and water sustainability
5. Global Biometric Systems Market Forecast & Opportunities, 2018
6. Global Biometrics and Border Control Award for DERMALOG
7. Climate change will cause widespread global-scale loss of common plants and animals
8. Researchers calculate the global highways of invasive marine species
9. New plant protein discoveries could ease global food and fuel demands
10. Without adequate funding, deadly wheat disease could threaten global food supplies
11. Mount Sinai leads global program using stem cells to accelerate cures for Alzheimers disease
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/11/2014)... Rio de Janeiro, Brazil- In the brains of ... mechanism that allows an electric or chemical signal ... another. Chemical synapses, which are the most abundant ... inhibitory. Synapse formation is crucial for learning, memory, ... and inhibitory synapses critical for brain function. ...
(Date:7/10/2014)... , July 1, 2014 Smart ... way for convenience and improved security: NXT-ID, Inc. (OTCBB: NXTD), ... GOOG ), Apple Inc. (NASDAQ: AAPL ... Corporation (NYSE: MA) NXT-ID, Inc., (OTCQB: NXTD) a biometric ... to announce that the second series of 30 second spots ...
(Date:7/10/2014)... -- Research and Markets ( http://www.researchandmarkets.com/research/h7h8lq/gesture ) has ... Recognition & Touch-Less Sensing (2D, 3D, Ultrasonic, IR, ... to their offering http://photos.prnewswire.com/prnh/20130307/600769 ... Sensing Market to Grow Exponentially. Touch-less sensing applications ... companies were unable to leverage this technology due ...
Breaking Biology News(10 mins):Blame it on the astrocytes 2Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 2Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 3Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 4Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 5Global Gesture Recognition & Touch-Less Sensing (2D, 3D, Ultrasonic, IR, Capacitive) Market - Forecasts to 2020 2
... the Texas Biomedical Research Institute may help explain why ... at-risk for atypical fractures in the long bones in ... Ph.D. and colleagues at the Southwest Research Institute and ... differences in the microstructure of their femurs that she ...
... Antibiotic resistance is an international reality whose solution ... an infectious disease physician. "The big problem is ... not only can they lead to side effects like ... is development of multidrug-resistant organisms," said Dr. Josѐ A. ...
... the genetic signature of respiratory syncytial virus (RSV), the leading ... a key step toward a better understanding of the immune ... vaccine and a tool that could allow physicians to determine ... study, from a team at The Research Institute at Nationwide ...
Cached Biology News:New studies may explain fractures in some who take osteoporosis drugs 2Antibiotic resistance is a international issue that better education can address 2Genetic signature identified for RSV, the leading cause of infant hospitalizations worldwide 2Genetic signature identified for RSV, the leading cause of infant hospitalizations worldwide 3
(Date:7/10/2014)... July 10, 2014 Deep Knowledge ... Medicine Forum on ‘Commercialising Longevity Research’ and welcomed ... to the London Bioscience Innovation Center for the ... and Aging Analytics Ltd. The meeting highlighted the ... translational research for age-related disease, as well as ...
(Date:7/10/2014)... San Francisco, CA (PRWEB) July 10, 2014 ... a family closer together. The Archer Family purchased ... information contained within DNA, but ended up with a ... surprising discoveries contained within the family members’ DNA genuinely ... family had decided to search deeper into genetic history ...
(Date:7/10/2014)... (PRWEB) July 10, 2014 EvoDerma ’s ... convenience. This rejuvenating device now comes with a second treatment ... over time. , The new cup is thinner on the ... works to target rough, thin and uneven surfaces on the ... cup for a stimulating treatment on areas such as the ...
(Date:7/10/2014)... PETERSBURG, Russia , July 10, 2014 ... Russian Federation Dmitry Medvedev , presented ... biopharmaceutical company BIOCAD . The Company is developing ... scope of MabNext project BIOCAD develops a number of ... cancer and autoimmune diseases. The ceremony took place at ...
Breaking Biology Technology:DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 2DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 3DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 4DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 5DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 6Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 2Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 3Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 4Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 5Introducing a New Bonus Treatment Cup for EvoDerma’s NOOME Anti-Aging Motion 2Dmitry Medvedev Presented BIOCAD the First National "Industry" Award 2
... one of six states to receive a $50,000 grant ... network further into the Internet age. , ,Wisconsin's grant ... of Justice Assistance, which houses the Wisconsin Justice ... maintaining, promoting and coordinating automated justice information systems. , ...
... the learning acquired in the program but rather the blue-chip roster ... mythology goes, you can call on a fellow alum to help ... will be of value once again. , ,Though I can't say ... can attest to the power of alumni connections. , ,While I'm ...
... of health-care and business technology, announced a seven-year contract with ... Information System (MMIS). The new system is expected to be ... contracts EDS to implement its InterChange health system on the ... Services . The contract is worth approximately $189 million and ...
Cached Biology Technology:State receives grant for justice information sharing 2Pay attention to your alumni connections when job hunting 2Pay attention to your alumni connections when job hunting 3Pay attention to your alumni connections when job hunting 4State picks long-time vendor for $189m Medicaid information system 2
... The Dyad Disciple thermal cycler is ... It may also be operated independently, using ... variety of interchangeable Alpha units (sample-holder, heat-pump ... well as the Chromo4 real-time detector. Peltier ...
Mouse monoclonal [IA-C6] to MHC Class II I Ab + Ad (FITC) ( Abpromise for all tested applications). Antigen: Tissue / cell preparation of Purified Mouse lymph node B cells...
BD BioCoat Vented Caps for 175 cm2 Flasks...
BD BioCoat Poly-D-Lysine 60 mm Culture Dishes, tissue-culture treated polystyrene with a uniform application of poly-D-lysine....
Biology Products: